1 /* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "smpi_comm.hpp"
9 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(smpi_pmpi);
11 /* PMPI User level calls */
13 /* The topo part of MPI_COMM_WORLD should always be nullptr. When other topologies will be implemented, not only should we
14 * check if the topology is nullptr, but we should check if it is the good topology type (so we have to add a
15 * MPIR_Topo_Type field, and replace the MPI_Topology field by an union)*/
17 int PMPI_Cart_create(MPI_Comm comm_old, int ndims, int* dims, int* periodic, int reorder, MPI_Comm* comm_cart) {
18 if (comm_old == MPI_COMM_NULL){
20 } else if (ndims < 0 || (ndims > 0 && (dims == nullptr || periodic == nullptr)) || comm_cart == nullptr) {
23 simgrid::smpi::Topo_Cart* topo = new simgrid::smpi::Topo_Cart(comm_old, ndims, dims, periodic, reorder, comm_cart);
24 if(*comm_cart==MPI_COMM_NULL)
30 int PMPI_Cart_rank(MPI_Comm comm, int* coords, int* rank) {
31 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
32 return MPI_ERR_TOPOLOGY;
34 if (coords == nullptr) {
37 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
41 return topo->rank(coords, rank);
44 int PMPI_Cart_shift(MPI_Comm comm, int direction, int displ, int* source, int* dest) {
45 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
46 return MPI_ERR_TOPOLOGY;
48 if (source == nullptr || dest == nullptr || direction < 0 ) {
51 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
55 return topo->shift(direction, displ, source, dest);
58 int PMPI_Cart_coords(MPI_Comm comm, int rank, int maxdims, int* coords) {
59 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
60 return MPI_ERR_TOPOLOGY;
62 if (rank < 0 || rank >= comm->size()) {
68 if(coords == nullptr) {
71 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
75 return topo->coords(rank, maxdims, coords);
78 int PMPI_Cart_get(MPI_Comm comm, int maxdims, int* dims, int* periods, int* coords) {
79 if(comm == nullptr || comm->topo() == nullptr) {
80 return MPI_ERR_TOPOLOGY;
82 if(maxdims <= 0 || dims == nullptr || periods == nullptr || coords == nullptr) {
85 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
89 return topo->get(maxdims, dims, periods, coords);
92 int PMPI_Cartdim_get(MPI_Comm comm, int* ndims) {
93 if (comm == MPI_COMM_NULL || comm->topo() == nullptr) {
94 return MPI_ERR_TOPOLOGY;
96 if (ndims == nullptr) {
99 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
103 return topo->dim_get(ndims);
106 int PMPI_Dims_create(int nnodes, int ndims, int* dims) {
107 if(dims == nullptr) {
110 if (ndims < 1 || nnodes < 1) {
113 return simgrid::smpi::Topo_Cart::Dims_create(nnodes, ndims, dims);
116 int PMPI_Cart_sub(MPI_Comm comm, int* remain_dims, MPI_Comm* comm_new) {
117 if(comm == MPI_COMM_NULL || comm->topo() == nullptr) {
118 return MPI_ERR_TOPOLOGY;
120 if (comm_new == nullptr) {
123 MPIR_Cart_Topology topo = static_cast<MPIR_Cart_Topology>(comm->topo());
127 MPIR_Cart_Topology cart = topo->sub(remain_dims, comm_new);
128 if(*comm_new==MPI_COMM_NULL)